Multiple choice

The line $x+y=n, n \in 1$ cuts the circle $x^2+y^2=8$ ate two distinct points $ A & B$. then-

  1. Number of such posssible chord $AB$ is $7$.
  2. Number of such posssible chord $AB$ is $9$.
  3. Sum of squares of length of all possible chord $AB$ is $200$.
  4. Sum of squares of length of all possible chord $AB$ is $168$.
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